42640143

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 72739296

約数和(自身を除く): 30099153

約数列:

[1, 3, 7, 13, 21, 39, 49, 53, 91, 147, 159, 273, 371, 421, 637, 689, 1113, 1263, 1911, 2067, 2597, 2947, 4823, 5473, 7791, 8841, 14469, 16419, 20629, 22313, 33761, 38311, 61887, 66939, 101283, 114933, 156191, 268177, 290069, 468573, 804531, 870207, 1093337, 2030483, 3280011, 6091449, 14213381, 42640143]

約数ペア:

[(1, 42640143), (3, 14213381), (7, 6091449), (13, 3280011), (21, 2030483), (39, 1093337), (49, 870207), (53, 804531), (91, 468573), (147, 290069), (159, 268177), (273, 156191), (371, 114933), (421, 101283), (637, 66939), (689, 61887), (1113, 38311), (1263, 33761), (1911, 22313), (2067, 20629), (2597, 16419), (2947, 14469), (4823, 8841), (5473, 7791)]